Basement / Cellar Waterproofing (Tanking)

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Archers Specialist Treatments
Winters Farm
North Green Common Road
Wivelsfield Green
Near Haywards Heath
West Sussex
RH17 7RJ


Call us today on 01444 471090 (select option 1), or call Paul on mobile: 07808 061617

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Cellars and basements that are below ground are susceptible to penetrating damp (not to be confused with Rising Damp). When water has penetrated through the walls waterproofing becomes necessary.

What is tanking? The waterproofing of basements and cellars is otherwise known as Basement Tanking which involves installing a completely waterproof membrane over a masonry surface to prevent water from entering to give full protection.

Penetrating damp is found where the internal floor levels are below the external ground level, more typically in a basement. The installation of a waterproof tanking system applied to the internal walls is necessary to restore the room to a habitable condition. The process is quite able to cope with the wettest of walls and resist high levels of water pressure, yet still allows water vapour diffusion through the wall. The rendered walls can be finished with a set coat of plaster in the normal way.

Archers are specialists and experts in basement and cellar tanking (and other wet rooms) with over 25 years of experience. Our surveyor, Paul Halliwell, has a full understanding of the nationally recognised code BS8102 which is the code of practice for waterproofing below ground and is a Certified Surveyor in Structural Waterproofing (CSSW). This is an important consideration for any person considering a basement or cellar conversion. Any company not holding this certification should be avoided at all costs! We use Sika products - known to be the very best on the market.

We have years of experience cellar and basement tanking renovations throughout West and East Sussex, Kent and London as the images on the left show. To arrange a detailed survey and report simply call Paul today.


Please mouseover the images on the left to view the transformations !

Top imageBrighton College

2nd from top images (before and after) of work undertaken at Brighton College where we created a waterproof computer room from an unusable basement.

3rd from top images (before and after) of a domestic dwelling in Dorking, Surrey  where we waterproofed the under ground basement that was susceptible to flooding and is now used as a home office.

4th from top images (before and after) - NSPCC Headquarters in Crawley, West Sussex. Waterproof Tanking System applied to earth retaining walls.

5th from top images (before and after) - building society in Brighton (their disused store area was transformed into an office space).